Cita APA (7a ed.)

Tatnall, A. (2005). Web portals: The new gateways to Internet information and services. Idea Group.

Cita Chicago Style (17a ed.)

Tatnall, Arthur. Web Portals: The New Gateways to Internet Information and Services. Hershey [etc.]: Idea Group, 2005.

Cita MLA (9a ed.)

Tatnall, Arthur. Web Portals: The New Gateways to Internet Information and Services. Idea Group, 2005.